Before: call ale#assert#SetUpLinterTest('c', 'flawfinder') After: call ale#assert#TearDownLinterTest() Execute(The flawfinder command should be correct): AssertLinter 'flawfinder', ale#Escape('flawfinder') . ' -CDQS --minlevel=1 %t' Execute(The minlevel of flawfinder should be configurable): let b:ale_c_flawfinder_minlevel = 8 AssertLinter 'flawfinder', ale#Escape('flawfinder') . ' -CDQS --minlevel=8 %t' Execute(Additional flawfinder options should be configurable): let b:ale_c_flawfinder_options = '--foobar' AssertLinter 'flawfinder', \ ale#Escape('flawfinder') . ' -CDQS --foobar --minlevel=1 %t' Execute(The flawfinder exectable should be configurable): let b:ale_c_flawfinder_executable = 'foo/bar' AssertLinter 'foo/bar', ale#Escape('foo/bar') . ' -CDQS --minlevel=1 %t'